|A few suggestions. I can't think of anything that would definitely work.|
Are you trying to move them or copy them from the camera? Whichever it is you might try the other.
Try copying them one at a time to see if it's just that file. Try copying to different folders.
If you're using software from the camera manufacturer try instead opening both in My Computer and drag them from the camera to the hard drive. Try removing the SD card and using a card reader.